Results 21 to 30 of about 12,885 (266)

Finite element analysis on bending failure of offshore floating pipeline

open access: yesYou-qi chuyun, 2022
Large bending may occur to the offshore floating pipeline under the action of bending load, which further results in the pipeline failure, threatening the transportation safety of crude oil from the offshore oil field.
Xiao ZOU   +6 more
doaj   +1 more source

Research on AC Corrosion Behavior of X65 Pipeline Steel and Sacrificial Anode Materials in Seawater Environment [PDF]

open access: yesCailiao Baohu, 2023
Currently,few studies have been conducted on the AC corrosion behavior of pipeline steel and sacrificial anodes in the marine environment.In order to provide a reference for evaluating the AC corrosion risk of submarine pipeline and the consumption ...
WANG Hongguang, DONG Kun, HUANG Haojun, WANG Baosen, TIAN Nianpei, LIANG Yi, DU Yanxia
doaj   +1 more source

Corrosion Behavior of X100 Pipeline Steel and Its Heat-Affected Zones in Simulated acidic Soil Solution

open access: yesInternational Journal of Electrochemical Science, 2020
Different thermal cycle times, peak temperatures, and cooling rates were used in a Gleeble thermomechanical processing machine to simulate the coarse-grained heat-affected zones (CGHAZ) and inter-critically reheated coarse-grained heat-affected zones ...
Yong Yang   +3 more
doaj   +1 more source

Research Progress on the Corrosion and Protection of Pipeline Steels in CO2 and H2S Environments [PDF]

open access: yesCailiao Baohu, 2023
With the development of global oil and gas industry expands, pipeline steel corrosion in CO2 and H2S environments has become a significant impediment to oil and gas industry growth.The corrosion of pipeline steel is gradually receiving attention ...
ZHANG Jiaojiao, DAI Yujie, JIA Caihua, LIU Siwen
doaj   +1 more source

Study on Repairing and Reinforcing Effect of Steel Epoxy Sleeve on Girth Weld Defects

open access: yesShiyou jixie, 2022
In order to study the repairing and reinforcing effect of steel epoxy sleeve on girth weld defects of X80 pipeline,ANSYS is applied to establish the nonlinear finite element models of X80 pipeline with girth weld defects and pipeline reinforced by steel ...
Yu Dongliang   +4 more
doaj  

Effect of Alternating Stray Current and Stress on the Corrosion Behavior of X80 Pipeline Steel in Soil Simulated Solution

open access: yesInternational Journal of Electrochemical Science, 2018
The corrosion behavior of X80 pipeline steel in 3.5 wt.% NaCl solution and simulated Dagang soil solution under different alternating current (AC) electrical densities was studied using the weight loss method, and was tested and analyzed using the ...
Xinhua Wang   +3 more
doaj   +1 more source

Balancing low-temperature toughness and S-CO2 corrosion resistance: A Cr–Ni microalloying strategy for pipeline steels

open access: yesMaterials & Design
This study investigates the combined effects of Cr and Ni microalloying on the low-temperature fracture toughness and corrosion resistance of high-strength low-alloy pipeline steels exposed to H2S/CO2-saturated supercritical CO2 environments.
Qilin Ma   +6 more
doaj   +1 more source

Prediction of the drop hammer-derived tear toughness of pipeline steel production lines using literature data and production line data

open access: yes工程科学学报, 2023
Pipeline transportation is the most economical means of transporting oil, natural gas, and other energy sources over a long distance. With the increasingly harsh service environment of pipeline transportation, the requirements of pipeline steel in terms ...
Chun-lei SHANG   +10 more
doaj   +1 more source

Mechanical Anisotropy in Steels for Pipelines

open access: yesISIJ International, 2013
There has been a huge expansion in the laying of pipelines for the transmission of fossil fuels over large distances and in dire environments. One particular problem associated with the steels used to fabricate the pipes is that of the anisotropy of mechanica lp roperties, especially the toughness. This review represents an attempt to critically assess
Joo, MS, Suh, DW, Bhadeshia, HKDH
openaire   +3 more sources

Mechanical Properties and Notch Sensitivities of the Hydrogenated X70 Pipeline Steel Welded Joints [PDF]

open access: yesCailiao Baohu
In order to explore the effects of pipeline inner-wall surface defects on reliability of the hydrogen enriched compressed natural gas(HCNG) pipeline steel welded joints in long-term service, the notches in the base metal, weld seam and heat affected zone
CHEN Ye, WANG Wanli, ZHAN Xianqiang, LIU Junjian, TANG Wenming
doaj   +1 more source

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